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Pie
2 years ago
15

What is the value of the expression below when x=10x=10 and y=4y=4? 8x-7y 8x−7y

Mathematics
1 answer:
saveliy_v [14]2 years ago
7 0

Answer:

Step-by-step explanation:

8(10) - 7(4)

8X10 - 7X4

80 - 28

52

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Marcela estimates the distance between the library and town hall is 735 ft. The actual distance is 612 ft
miv72 [106K]
The answer is 20%.

Step 1: Subtract the measured distance and the actual distance to calculate the error.
Step 2: Divide the given value by the actual distance and convert it into the percentage.

the actual distance is 612 ft
the measured distance is 735 ft

Step 1: 735 ft - 612 ft = 123 ft
Step 2: 123 ft / 612 ft = 0.20 = 20/100 = 20%
6 0
3 years ago
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Choose the property of addition that justifies the equation<br><br> 9+2=2+9
Alenkasestr [34]

Answer:

Communitive Property

Step-by-step explanation:

Communitive property is when you switch up numbers when you multiply and add but it's still the same.

4 0
2 years ago
Grade 6 students sold 318 tickets for a school pay. The number of adult tickets was six
9966 [12]
Total: 318
Student tickets: x
Adult tickets: 3x+6

x+(3x+6)=318 -> 4x+6=318 -> 4x=312 -> x=78

3(78)+6 = 234+6 = 240

240 adult tickets were sold
8 0
3 years ago
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 A chemical solution contains 8% of a compound. If there is 16ml of that compound, what is the volume of the solution?
Amanda [17]
U should either multiply 8% by 16ml  hope i helped. :)

8 0
3 years ago
Evelyn and Meredith decided to kayak 1 mile up and then back in the Humboldt channel.
Yakvenalex [24]

The rate of the water flowing in the channel was 2 miles per hour, the rate Evelyn and Meredith were paddling is mathematically given as

v+ = 2.29 1mile/hour

<h3>What is the rate Evelyn and Meredith were paddling?</h3>

Generally, the equation for the up and downstream motion is mathematically given as

vup=v-2

vdown=v+2

Therefore, Statement interpretation

2/3=40*1/60

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tup+tdown=11/3

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Considering the LCD equation

3(v-2)(V+2)

Hence

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11v^2-6v-44=0

v=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

Resolving using the equation we have

v+ = 2.29 1mile/hour

v- = -1.745 mile hour

Read more about  Speed

brainly.com/question/4931057

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7 0
2 years ago
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